Cream cooler



I. J. B. DEMERS May 2, i933.

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Patented May 2, 1933 UNITED STATES.

IsAfE J. n. DEMERS, on em. PAUL, MINNESOTA CREAM COOLER Application filed December 26, 1930. Serial No. 504,823.

It is my object to provide an unusually inexpensive and eflicient cooler, particularly, although not exclusively adapted for use in cooling fresh cream as it is delivered from a separator.

Other objects are to provide an improved arrangement of passages for water or other cooling fluid in a device of this kind; to provide simplified and efficient means for distributing the cream on the exterior of the cooler and to provide means for supporting the cooler on or above a container for the cream in such a manner as to permit adjustment to meet varying conditions and to The device has a cylindrical outer casing 5, long and relatively small in diameter,

' and designed to be suspended from. its upper end. The lower end 6 of the casing 5 is closed and a head 7 is offset downward within the upper end to form a shallow receptacle 8 into which the cream to be cooled is delivered. A generally cylindrical conduit for cooling fluid is rigidly mounted in close proximity to the inner surface of the casing 5 to form therewith an annular attenuated passage communicating with the lower end of the central chamber within the tubular member 9 and with an outlet pipe 10 for. cooling fluid near the upper end of the casing. An inlet pipe 11 for cooling fluid extends through an opening in the casing 5 and communicates with the upper end of the conduit9. To prevent direct communication between the pipes 10 and 11, a partition 12 is secured to the conduit 9 above the connection with the pipe 11 and beneath the connection with the pipe 10. The pipes 10 and 11 project from opinsure uniform flow of the cream over they posite sides of the casing 5 and, being rigidly connected thereto, afford means for suspending said casing in proper upright position. To maintain-the conduit 9 in uniformly spaced relation to the casing 5, a series of small projections 13 are pressed outward from the sheet metal of said conduit, said projections being spaced around the periphery and also spaced longitudinally of the conduit.

My improved cooler is designed to be sup ported on a container 14 for the cream or other fluid to be cooled, and to support the coolerv on said container, 'a stand- 15 is formed with feet members '16 to engage the upper periphery of the container. A ring 17 on the stand is arranged to freely encircle the casing 5.and thereby form a rest for the pipes 10 and 11 when the cooler is used in the extended position shown in full lines in Figs. 2 and 3. The pipes 10 and 11 have portions which are. arched vertically where they engage the ring 17. By this arrangement, adjustment of the level of the cooler is facilitated and it will be understood that the casing 5 isv movable laterally in the ring 17 tocause the inclined or arched portions of the pipes 10 and 11 toengage the ring 17 at different heights and the casing may also be turned'within the ring tosecure the desired leveling of the cooler. V P

In'use, the pipe 11 is connected to a suitable source of cold water or other cooling fluid and the pipe 10 is provided with a waste connection or a hose tootherwise dispose of the outletwater. The-cooler is supported on the container 14 for the cream, as shown in full lines in Figs. 2 and 3, and the receptacle 8 in thetop of the casing 5 is placed beneath the cream outlet of a separator or other cream supply. As the cream is delivered to the'receptacle 8 it overflows the side walls of said receptacle and passes down on the exterior of the casin 5 whence it falls into the container l. ooling of the cream is effected rapidly by the cold water entering through the-pipe 11, passing downward through the conduit 9 and up ward in the attenuated space between said inclined portions and a stand formed to enconduit and the casing 5, the walls of the casing being constructed from sheet metal of good heat conducting qualities. Cooling fluid, after passing up upon the inner surface of the casing 5, passes out through the pipe 10. To secure uniform distribution of the cream on the exterior of the casing 5, it is only necessary to adjust the position of the casing on the stand 15 so that the periphery of the casing, constituting the upper edge of the walls of the receptacle 8 isyapproximately horizontal. d

When the casing 5 becomes partially submerged in the cooled cream in the container 14, by operation of the device in the full line position shown in Figs. 2 and 3, the cooling may be continued with my device by merely turning the stand 15 to the horizontal position (dotted line position indicated in Figs. 2 and 3) and supporting the casing on the members of the stand which are now horizontal. This immerses a greater part of the casing in the body of cream and allows the, cooling to be continued after the container 14 has been substantially filled.

By providing the attenuated, annular passage for cooling fluid adjacent to the inner surface of the casing 5, I promote rapid transfer of heat from the cream to the cooling fluid and eflicienoy is further promoted by passing this thin stream of the cooling fluid in the opposite direction from the flow of cream on the casing 5. It will be further evident that my device is of extremely simple and inexpensive construction and requires a minimum of work in cleansing and sterilizing the surfaces after contact with the cream.

Having described my invention, what I claim as newand desire to protect by Letters Patent is 1. A cream cooler having in combination a normally upright, tubular casing closed at 1ts lower end and having a head offset downward within its upper end to form a shallow receptacle for the cream to be cooled, a tubular conduit disposed within said casing in slightly spaced relation thereto, the lower end of said conduit being open near the bottom of said casing, a closure for the upper end of said conduit spaced from said head and inlet and outlet pipes communicating regage said inclined portions of the pipes to support the casing in upright position above a container for the cream.

3. A cream cooler having in combination a casing formed with an open receptacle for cream in its upper end, a conduit disposed within said casing and having its lower end communicating with the bottom of said casing, means for preventing communication between the upper ends of said conduit and casing, inlet and outlet connections for cooling fluid communicating respectively with the upper ends of said conduit and casing, a stand for suspending said casing in a receiving container for the cream, and inclined members projecting laterally from said casing and arranged to rest on said stand for.

adjustably supporting said casing in upright position.

4. A cream cooler having in combination an open cream receptacle, a casing, closed at its top and bottom, a conduit disposed in spaced relation to the interior of said casing, the lower end of said conduit being open near the bottom of said casing, inlet and outlet pipes for cooling fluid communicating respectively with the upper ends of said conduit and casing, rigid members extending outward from the upper part of the casing to be supported on said receptacle and means for distributing cream upon the exterior surface of said casing for cooling the same during its passage to said receptacle. V

5. A cream cooler having in combination an'open cream receptacle, a casing, closed at its top and bottom, a conduit disposed in spaced relation to the interior of said casing, the lower end of said conduit being open within said casing, a shallow cream receiver formed in the top of said casing to distribute cream 011 the exterior thereof, inlet and outlet pipes for cooling fluid communicating respectively with the upper ends of said conduit and casing and means for supporting the casing on the top of said receptacle.

7 6. A cream cooler having in'combination a casing,'a conduit disposed in spaced relation tothe interior of said casing, the lower end of said conduit being open near the'bottom of said casing, inlet and outlet pipes for cooling fluid communicating respectively with the upper ends of said conduit and casing and extending outward therefrom to constitute supporting means for the easing, a stand for engaging said pipes to support' the casing when in raised position on a cream receptacle, and means for distribut-.

ing cream upon the exterior surface of said casing for cooling the same during its pas: sage to said receptacle.

In testimony whereof, I have hereunto signed my name to. this'specification.

ISATE B. DEMERS. 

